Self-installation deep draft production and storage platform

Abstract

A self-mounted deep draught production oil-storage platform comprises a floating body, an oil production treatment module, a platform drilling machine, an extending shell structure and an annular structure, wherein the oil production treatment module is arranged at the upper part of a floating body technical deck; the platform drilling machine is arranged at the upper part of the floating body technical deck; the extending shell structure is arranged at the lower part of the floating body and is formed by extending downwards; and the annular structure is arranged under the extending shell structure; the cross section of the extending shell structure is consistent with that of the floating body; an opening is formed in the bottom of the extending shell structure; the opening is in communication with seawater; the upper part of the annular structure is connected with pile legs; and the pile legs are connected with the floating body through gear devices arranged on a main deck. The self-mounted deep draught production oil-storage platform has the advantages that the platform can be self-mounted so that the development costs of marginal oil fields are greatly lowered; and moreover, drilling and workover, oil production, production and treatment, storage and outward transportation and life support are integrated so that the production efficiency is greatly enhanced; and the self-mounted deep draught production oil-storage platform is very suitable for developing the marginal oil fields with large water depths and small reserves.

Description

technical field [0001] The invention relates to an oil storage platform, in particular to a self-installation deep-draft production oil storage platform. It belongs to the field of marine engineering technology. Background technique [0002] At present, most of the newly discovered oil fields in China belong to the category of marginal oil fields. For the development of marginal oil fields, the platform needs to have a deep draft and be convenient for oil storage. However, in the existing cylindrical floating platform, when the liquid storage capacity is small, the draft is not deep, and the motion performance becomes poor. The single-pillar (SPAR) platform is not only inconvenient for oil storage, but also needs to use special transport ships and large offshore floating cranes during offshore installation. The installation procedure is more complicated, the construction period is longer, and the project cost is higher. Therefore, the above-mentioned existing technologies...

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Problems solved by technology

[0003] The main purpose of the present invention is to overcome the above-mentioned shortcomings existing in the prior art, and provide a self-installation deep-draft production oil storage platform, which can not only realize the self-installation of the platform, but also solve the problem of dependence on large-scale offshore construction resources. It reduces the development cost of marginal oil fields; moreover, it integrates drilling and workover, oil production, production processing, storage and transportation, and life support, which greatly improves production efficiency and is very suitable for developing marginal oil fields with deep water depth and small reserves. oilfield

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